Syracuse University's Fall 2008 Frontiers of Science Lecture Series will conclude on Wednesday, Nov. 12, with "Ecosystems and Economics in the African Savanna," presented by Mark Ritchie, biology professor in SU's College of Arts and Sciences. The lecture-from 7:30-8:30 p.m. in the Gifford Auditorium, located in H.B. Crouse Hall-is free and open to the public. Parking is available in the Irving Garage for $3.50.

Three great challenges for human society in the 21st century are reducing emissions of greenhouse gases to slow global climate change, reducing or eliminating human poverty in developing countries, and conserving the Earth's biodiversity. Natural ecosystems, in the form of forests and grasslands, have a large potential to remove or "scrub" greenhouse gases, such as carbon dioxide, from the atmosphere by storing carbon in the wood of trees or the organic matter in soils. However, widespread human poverty fosters land use practices that diminish the potential to preserve these natural ecosystems.

Ritchie's lecture will focus on recent discoveries in the Serengeti region of East Africa that suggest that wildlife grazing leads to greater carbon storage and how emerging carbon markets may provide income for rural Africans as well as economic incentives for wildlife conservation.